{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["RNA", "cell type"], "input": "To examine the role of mineralocorticoids in the pathophysiology of pregnancy-induced hypertension ( PIH ), we studied plasma aldosterone and 18-hydroxycorticosterone levels in 25 women with PIH and 25 normal pregnant women , as controls ."}
{"RNA": [], "cell type": []}